Charles o



(No'Model.)

v.'0.YALL.` l A LOCKING MBCHANISM FOR SAFES.

No. 521,842. Patented June 26, 1894.

Mimi55/915s v INVENToJ.

' UNITED STATES PATENT i OFFICE.

CHARLES o. YALE, on NEw YORK, N. Y.

LOCKING MECHANISM FORSAFES.

SPECIFICATIONl forming part of Letters Patent No. 521,842, dated .une26, 1894:.

Applicationiiled January 29, 1892. Serial No.419,630. (No model.)

To @ZZ whom tmc/y concern,.-

Be it known that I, CHARLES O. YALE, of

` the city, county, and State of New York, have f letters and figures ofreference marked thereon, which form part of this specification.

My invention relates to improved tight locking mechanism for safe orvault doors.

In the drawings which accompany and form part of thisspecification andin which simi- "lar letters and figures of reference refer tocorresponding parts in the several views, Figure 1 shows the inside viewof a safe or vault door together with a portion of the snrrounding jamband my locking mechanism mounted thereon. Fig. 2 shows in detail one ofthe locking bolts together with portions of the jamb and door and boltcarrying mechanism shown mostly in section. Fig. 3 shows a gearing and.screw for operating the bolts together with a broken out section of thedoor. Fig. 4 shows a plan view of the devices shown in Fig. 3. Fig. 5shows a cross section of a portion of the door and jamb and the packingintroduced between the jamb and door. Fig. 6 shows a modified form ofconstruction of the wedge plate on which the bolts engage. f

Referring more particularly to the reference numerals and letters markedon the drawings in a more particular description of the device, 1indicates the door which engages with .the jamb 2 by suitable recedingoffsets 3 shown in detail in Fig. 5. On the inner face of the door ismounted a bolt bar 4 provided with suitable openings through whichoperate the locking bolts 5 of which six are shown in Fig.

1. The Vbolts are preferably cylindrical in shape and provided with akcollar 6 which en-y gages within an opening 7 in movable throw bar 8.The rear portion of the bolt engages in'bolt holding clasps 9 secured onthe bar 8. Of the bolts at the end of the door,the throwbars 8 areprovided with an 'extension 9 which extends to pivoted disk 10 pivotedat its center to the door and provided with a fixed ypin 11 engaging inthe slot 12 in the ezt-y tension 9a. The disk l0 is connected byconnecting rod 13 with the main operating bar 14. On the main throw bar14 is provided a nut carrying projection 15 in which engagesy screw 16which at its opposite end runs in the bearing 17. Secured to the door,on the end of the screw 16, is provided a beveled gear 18, which isengaged by beveled gear- 19 mounted on a shaft 2O extending to the out-vside of the door and provided with suitable handle 21. The bar 14 issecured to the inner face of the door by suitable set screws or headedpins 22 engaging in slotted openings 23 in bar 14. The several bolts onthe opposite side of the door from the main throw bar are actuated byconnecting rods 24 operating from the disks 10, there being two throwbars provided on this side of the door, one for each bolt; but theconnection and construction of the bolts with plates is the same in eachof the instances. v

Between the bolt clasp 9 and the collar 6 thereof is introduced a spring25, which furnishes a yielding connection between the bolt and the throwbars whereby the several bolts are enabled to obtain a Iirm and evenbearing of all the bolts on the jamb. Each of the several bolts isindependently movable with reference tothe throw-bar and is limited inits independent movement by the collar 6 on the bolt coming in contactwith the oppositesides of the slot in the throw-bar into which the sideof the collar projects.

Secured firmly to the main throw bar 14 is provided a projection 26which extends to and is operated upon by a time lock in boX 27 to securethe bolts in the manner now cornmon. There is also provided on throw bar14 a projection 28 which is adapted to be engaged by an arm 29projecting from and operated and controlled by combination lock 30. Thearm 29 is provided with a notched opening that will receive theprojection 28 when the bolts are drawn so that they may be locked by thecombination lockVY in open position or the lock arm 29 may be raisedtoits proper position as shown in Fig. 1 in re-setting the combination ofthe lock. The sev- IOO position to be engaged b v the several bolts, thethin edge of the bolt plates being toward the door opening and towardthe bolt.

The jamb of the door is provided with steps or offsets for receiving thedoor, the edge of which is also provided with corresponding stepsoroffsets. One of the steps of the jamb is preferably provided with agroove as shown at 32 adapted to receive a corresponding tongue 33 onthe door and leaving on the outer end of the odset a tongue 34 which isadapted to engage in the corresponding groove 35 in the jamb.

The walls of the safe or jamb are preferably built up of layers andbetween the edges of adjacent layers are introduced the turned edges [aand b] of a strip of packing 36 which lines or covers the groove 32 andthe tongue 34 and passes around the end of one of the layers. Thispacking is preferably of soft metal although any other suitable packingmay be provided, and when the door is fully drawn into the jamb by thebolt mechanism described it becomes firmly embedded in the packing andprovides a joint that is a complete barrier to liquid or gaseousexplosives. The packing 36, is placed upon the jamb by being secured atthe edgea in the shape of a plain metal strip, it is then swaged intothe depression or groove 32, on the offset of the jalnb and the edge bis finally inserted in the groove which receives it. In swaging thepacking into the depression or groove 32, in the face of the offset,there is a certain amount of elasticity to the packing which tends toraise it from thebottom of the groove 2, except when the door is incontact with it, this elasticity or yielding is taken advantage of inthis construction to produce a liquid and gas tight joint.

The edge of the door jamb surrounding the door opening is preferably cutoif or beveled, as shown at 37, and the edge of the door `is alsobeveled, as shown at 38; but the bevels do not terminate at the bottomof the groove at the same line, thus presenting a joint that is proofagainst wedges.

The operation of the device is substantially as follows: The bolts arethrown or drawn by rotating handle 21 in either one direction or theother, depending on whether the bolts are to be thrown or drawn. Therotation of the handle 21 rotates the gear 19, which rotates the gear18, which rotates the screw 16 and either forces nut 15 from bearing 17carrying throw bar 14 away from bolt bar l or carrying the bar towardit, depending on whether the bolts are to be thrown or drawn. As thebolts are thrown theybecome engaged on wedge plates 31, located on thejamb, and as each bolt comes to a firm bearing on the `plate the furtherthrow ofthe bolt ceases and the further movement of the throw bar ispermitted by the compression of the springs 25. Thus it will be seenthat if all the bolts should not come to a firm bearing at thesameinstant the bolt that came first to a firm bearing would not hinder theother bolts being projected until they obtained a iirm bearing. When theprojected bolts come to a firm bearing and the throw bar is furtherthrown, the collar 6 of the bolt becomes re moved from the end of theslotted opening in the bar in which it engages, as will be noticed inFig. 2. It will be seen that the bolts are now engaged tohold thepacking 36 in a compressed condition between the tongues and grooves 32and 34 stretch it in such a manner as to insure a perfect packed jointwith no play between the parts. This packing may be made toextend overthe entire face of the several slips, and if made of brass or copper orother metal would furnish a handsome finish for the steps. When thebolts are drawn the collar 6 becomes engaged against the shoulder at theend ot' the slotted opening in the bar and the bolt is forciblyWithdrawn. lVhen the bolts are projected they are secured in lockedposition either by time lock 27 engaging on projection 2G or by lock arm29 of combination lock 30 or by both. The bolts may be drawn by rotatingthe handle 21 in the opposite direction from that to lock the bolts whenthe locks are freed to permit the bolts t'o be drawn. The several boltsare all simultaneously thrown or drawn by the connecting mechanismsheretofore described and whichwill be `readily understood withoutspecific description.

In the modified form of construction shown in Fig. 6 is provided a wedgeplate `c being the same as 31 except that it is providedwith slottedopening to allow it to play backward and forward from the door opening.The plate c is backed by spring d which holds it normally in itsposition nearest to the door opening. When the bolt is projected ontothe plate c and comes to a firm bearing thereon, the plate c will thenslide with the `bolt on the jamb to permit the boltto be furtherprojected while the other locking bolts come to firm bearing on theirseveral wedging plates. The sliding plates c and spring may be usedeither in connection with the bolt having spring 25 or without suchspring. The locking bolts may be provided with a beveledend to engage onthe Wedge plates 3l, if found desirable.

It is evident that many alterations `and changes in and from theconstruction described, other than those mentioned, may be made withoutdeparting from the equivalents of my construction.

What I claim as new, and desire to secure by Letters Patent, is*

1. The combination of two or more independently movable lockingbolts, ofathrow* IOC IlO

bar for simultaneously operating the bolts, a

shoulder on each bolt adapted to engage the throw-bar in positivelywithdrawing the bolt, and a spring introduced between the throwbar andbolt and exerting pressure in the direction of the throw of the boltwhereby each bolt is .capable ofindependently yielding as the bolt Workis being locked, substantially as set forth.

2. The combination in locking mechanism, of a throw-bar, two or moreindependently movable locking bolts, each having a shoulder adapted toengage the throw-bar in drawing the bolts, a spring for each boltintroduced between the throw bar and bolt and exerting pressure in thedirection of the throw of the bolt, whereby each bolt is capable ofindependently yielding with reference to the throwing mechanism, and awedging face on the jamb for each` bolt to engage upon, substantially asset forth.

3. The combination of two or more locking bolts, mcchanismforsimultaneously operating the bolts constructed to contne the boltswithin independent limits of movementwith reference thereto, a springfor each bolt introduced between the operating mechanism v and bolt andoperating to project the bolt with reference to the operating mechanism,substantially as set forth.

4. The combination with a jamb receding by steps from the face inwardly,of a step having a groove therein and a sheet metal packing secured atone edge by being tucked into a narrow groove provided therefor, thepacking conforming to the face of the step and to the groove therein andhaving its opposite edge secured on the side of the step by being tuckedinto a narrow groove or recess provided therefor, and a door receding bysteps,

and having tongues adapted to enter the groove of the steps on the jamb, substantially 3 5

